Pixsys ATR 121 - Alarm Operating Modes

23
15
Proportional
band
Width of the
process
expressed as
units (°C if
temperature)
0…999 0…9999
0 = On/Off
°C (temp.)
digit (V/mA)
(default 0)
16
Integral time.
Inertia of the
process
expressed as
seconds
0-999 0-9999
seconds
(0 excludes
Integral)
(default 0)
17
Derivative
time for
P.I.D.
Usually ¼ of
integral time
0…999 0…9999 seconds
(0 excludes
Derivative)
(default 0)
18
Cycle time
for time-
proportioning
output
(usually over
10s for
contactors,
1s for SSR,
value
declared by
manufacturer
for motorised
valves)
1-300 Seconds.
Entering 0 the
cycle time will be
100ms
(default 10)
24
Absolute related
to process
/Treshold alarm
(default)
Band alarm
Deviation high
Deviation low
Absolute related
to setpoint 1
Command output
for cooling action
for PID
Heating/Cooling
mode
1
19
Operating
mode of
alarm.
Setpoint for
alarm is
SET2
Absolute – with
manual reset
(after alarm
activation, press
FNC key to reset
the output)
1
Parameters 33,34,35,36 are considered only if double
action Heating/ Cooling (
selected as ) and
value of
other than 0.